Nozzle



Jan. 17, 1928.

BAwmAcco Nozzm Filed (Pct, 7, 1925 lill 'lli

lill

till

Patented dan. 17, 1928.

:unirse :STA

TESS

Latein PAT-:ENT orales.

LUHBAARAC, F ST. IJOUIS, "MISSUURIVASSGNOR 'T0 TIE AUTO LAUNDRY SYS lllllld MPANY, OF ST. LUIS, MESSUR, A CORPORATIN OY MSSUR.

NOZZLE.

Application led "October 7,1925. ierialflo. 61,040.

lilly invention relates to iiiiproven'ients in hoteles, and has :lor its primary object la noscztle designed for washing automobiles, which is so constructed `that an'iirziture` oit' air and water issues lrom the tip thereof at a high velocity so that heavy accumulations et dirt aan be removed without any danger olf scratching, or otherwise in ai'ring, the linish oi the vehicle.

l tui-ther object is to` construct ainozzle, which .is provided with separate liquidand air inlets and in which the intermingling olf: the nir and liquid taires place within the nozzle and preferably near its discharge end so that when the liquid and air emerge from the tip ot the nozzle, they will be thoroughly interiningled so that a inist is discharged :troni the nozzle. In this manner dirt acn eumulations are softened and lloated oil simultaneously so that no possibility of scratching is present in the device.

lin tl e drawings: n

li'ig. l is a side elevation ot my improved nozzle with the air and liquid hoses attached 'thereto Fig. 2 is an. enlarged vertical raginental sect-ion olf the forward part of the nozzle; and

llig. il is an enlarged vertical sectional View ot the rear portion of the nozzle with the air and liquid hoses removed therefrom.

ln the construction oit my device, l employ a rear member composed oit a cylindrical portion 4l. rlhe lorwaid part of' which is open and screw threaded as at 5, whiletlic rear portion is closed as at 6. Opening into the cylindrical portion l is an elbow 7, which is curved upwardly and rearwardly and which terminates in a hollow corrugated member 8. The purpose olI these corrugations is 'to securely hold a liquid hose 9, which is held in position on the corrugated member by ineaiis ol a clamp l0. The hose El is secured to any suitable source of liquid supply not shown, as this may be either a tanlr which contains liquid, or .it may be attached directly to a pipe through which liquid supplied to the hose. Carried by the rear Awall (l is a boss ll, which is pro-- vided with a corrugated extension l2 to which is attached an air hose 13. This air hose secured in position by means ot' a clamp lll. The air hose also leads to a suitable source of air supply not shown,

`threaded portion issecur-ed u tip 20,

and which is provided `withwa` restricted outlet 2l.

Secured within the screw threaded portion 5 of the cylindrical member Llis the screw threaded end 22 oi" a pipe 23. The opposite end ot this pipe is curved as indicated by the numeral Ql and is provided with screw threads E25 on which the tip 2G is secured. The tip .is provided with an opening 27 through. which the mixture olf water and air emerge. It will be noted from lig. 2 that the tip 20 is located at some distance to the rear et' the tip 2G, thus providing a chamber 28 in which the air and liquid can be thoroughly intermingled be'liore passing through the orifice 27.

The pipe 18 when in position. is located concentric with the pipe 23 so that the liquid can completely surround the pipe l. The purpose ot this is to permit practically an unrestricted flow of liquid through the pipe 23 and to discharge the air lroin the pipe 18 substantially in the center ot the liquid column. ln this manner, l am enabled to obtain a much more thorough mixture or air and liquid than would be possible if the tip 20 were located to one side oi? the liquid within the pipe 23. Furthermore by having a restricted opening in the tip r2@ it is obvious that the liquid will strike the nturned portion 28 ot the tip which surrounds the opening 2i" and rebound so that the liquid will be given a swirling movement or motion within the mining chamber 2S. This leature permits the liquid to more readily and thoroughly intei'niingle with the air passing through the opening 2l and consequently the liquid and air discharged through the opening` 27 will pass ont as a line spray or mist.

In the operation of my device., I prefer-- ably have the air under suoli pressure that when the mixture is discharged from the` nozzlej the amount of air will be in excess of -lubricant on the surface to be cleaned so that the mixture can readily Heat the dirt particlesfrom the surface without scratching,I

aving fully described my invention, what I claim is z- 1. A nozzle comprising a rear member having a water inlet and an air inlet, a water pipe having a curved outer end carried by said rear member, a tip carried by the outer end of said water pipe, said tip having an orifice surrounded by an inwardly extending lange whereby water passing through said pipe is given aswirling motion therein near the tip, and a straight pipe carried by said rear member and located within the water pipe and communicating with the air inlet, said pipe provided with a tip located to the rear of the curved end of the first mentioned ltip for discharging air under pressure into said swirling water whereby said Water is mixed with said air and ejected 'from the irst mentioned tip in the form of a mist.

2.- A nozzle comprising a rear member having a water inlet and an air inlet, a water pipe carried by said rear member, a tip carried by the outer end of said water pipe, said tip having an orifice surrounded by an inwardly extending flange whereby water passing through said pipe is given it swirling motion near the tip, a second pipe carried by said rear member and located within the water pipe, said second mentioned pipe communicating with the :tir inlet and being provided on its outer end with ay tip located to the rear and spaced apart Vtrom the inwardly extendilig langc for discharging air under pressure into said swirling water whereby said water is mixed with said air and ejected from the first mentioned tip in the form of a mist.

In testimony whereof I have aliixed my signature.

LOUIS BADARACCO. 

